.add-area {
  width: 100vw;
  margin-bottom: 100px;
  display: flex;
  align-items: center;
  flex-direction: column;
}

.add-title {
  display: block;
  margin: 80px 0;
  font-size: 36px;
}

.add-input {
  max-width: 80%;
  width: 500px;
  margin: 0 auto;
  display: flex;
  vertical-align: bottom;
  border-bottom: solid 1px #aaa;
}

.add-input input {
  font-size: large;
  line-height: 40px;
  flex: 1;
  outline: none;
  border: none;
  background: none;
  margin-right: 10px;
}

.add-input button {
  font-size: large;
  border: none;
  outline: none;
  line-height: 40px;
  height: 40px;
  width: 80px;
  background: none;
  cursor: pointer;
  border-radius: 20px;
  transition: all 0.2s;
  white-space: nowrap;
}
.add-input button:hover {
  background: #eee;
}